Oil burner



H. M. DAHL.

OIL BURNER.

APPLICATION FILED IuIIE4. 1921'.

1,408,27 1 Patented Feb. 28, 1922.

JZ Z

liarryjf 9&726

UNITED STATES PATENT OFFICE.

HARRY M. DAHL, OF YOAKUM, TEXAS.

on. IBURNER.

Application filed June 4,

To alZ whom it may concern.

Be it known that I, HARRY M. DA'HL, a citizen of the United States, residing at Yoakum, in the county of Lavaca, State of Texas, have invented certain new and useful Improvements in Oil Burners; and I do hereby declare the following tov be a full, clear, and exact description of the invention, such as will enable other skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in burners and particularly to liquid and gaseous fuel burners.

One object of the invention is to provide a burner of this type wherein the generated gas, together with the air mixed therewith, will be whirled upwardly, with the result that a strong and hot flame will be produced.

Another object is to provide a novel and improved form of air and gas mixing means wherein the air is forced to travel in spiral paths as it rises and mixes with the generated gas.

Another object is to provide a starting wick which can be quickly and easily removed from the center of the burner when sufiicient heat has been produced to congimlie the generation of gas from the liquid Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of a burner made in accordance with the invention, partly broken away.

Figure 2 is a vertical transverse central sectional view through the burner.

Figure 3 is a top plan view of the burner, partly in section.

Referring particularly to the accompanying drawing there is shown a burner pan which includes the outer channeled ring 10, the inner smaller channeled ring 11, and the radial and spirally extending channeled arm connecting the inner and outer rings, with their channels communicating with the channels of the rings, said arms being shown at 12.

Disposed on the upper edge of the outer wall of the outer ring 10, and rising therefrom, is a cylindrical casing 13 having the regularly spaced and spirally extending Specification of Letters Patent.

Patented Feb. 28, 1922.

1921. Serial No. 474,928.

slots 14 for passage of air from the spheri-v cal triangular spaces 15, formed between the arms 12 and between the rings 10 and 11. The upper wall of the casing 13 is formed with a large opening 16 through which the gasburns, as will be more clearly explained hereinafter.

Casings which are of the same horizontal sectional outline as the air openings or spaces 15, are disposed over said spaces and rest on the upper edges of the side walls of the arms 12, and on the upper edges of the adjacent walls of the inner and outer rings 10 and 11, as clearly seen in Figure 2, at 17. A cylindrical casin 18 is disposed on the upper edge of the inner wall of the inner ring 11. The walls of the casin 17 and 18 are also formed with the spiral y extending slots 19 for the passage of air. Seated on the upper end of each of the casings 17 is a cap 20, while a cap 21 is seated on the upper end of the casing 18. The upper portion of the casing 13 is formed with a horizontal extending and peripherally arranged fiange 13', and secured to and depending from this flange is an imperforate shell 22, the lower end of said shell terminating in spaced relation to the outer ring and outwardly thereof. The'shell 22 is also disposed in parallel spaced relation to the outer slotted casing 13, as seen in Figure .2. In the upper edge portions of the side walls of the rings 10 and 11, and the arms 12, there are formed the transverse notches 23 through which air from the spaces 15 pass to the spaces above the rings and arms.

Disposed in the channel of the inner ring 11 is an asbestos wick ring 24 to which is Secured the upwardly extending yoke 25 which is arranged to be grasped by a suitable .tool so as to permit the wick to be lifted completely out of the burner.

Oil is permitted to flow from the pipe 26, which is connected to the outer rin into the channel of said ring,and throng the channels of the arms 12 and into the channel of the inner ring 11. The wick is properly disposed in the channel of the inner ring, and then the wick ignited. The heat from the wick causes the oil to be vaporized over the channels of the pan, and to rise toward the opening 16, drawing air from the spaces 15, through the slots of the casing 13, 17, and 18, to mix with the gas. The combustion takes place in the opening 15 walls, removable caps on the casings, an

16, through which the flame issues, as will be clearly understood. When the burner parts have been sufiiciently heated to freely convert the liquid fuel into vapor the wick is lifted from the channel of the inner ring.

What is claimed is:

A liquid and gaseous fuel burner comprising a pan having inner and outer concentric channeled rings and connecting channeled arms disposed in the same plane, the spaces between the arms and rings providing air passages, vertical casin disposed over the said spaces and i aving spirally arranged slots in their enclosing outer surrounding casin having slots arranged spirally therein, t e upper edge portions of the walls of the channels of the arms and rings being formed with a series of transverse notches for passage of air, and an enclosing imperforate shell disposed around the outer casing and outer ring and spaced from the wall of said casing to provide an air space.

In testimony whereof, I affix my signature, in the presence of two witnesses.

HARRY M. DAHL. Witnesses:

G. B. CARSTARPHEN, F. O. CRAWFORD. 

